Illustrate the free body diagram based on the above condition. (ii) Calculate the space between the box and the ramp, dy. (iii) At the same condition as above, predict the velocity of the sliding block when the oil is replaced with the SAE 20 oil ( μ= 0.17 N.s/m2) at room temperature, then conclude the answer.
Illustrate the free body diagram based on the above condition. (ii) Calculate the space between the box and the ramp, dy. (iii) At the same condition as above, predict the velocity of the sliding block when the oil is replaced with the SAE 20 oil ( μ= 0.17 N.s/m2) at room temperature, then conclude the answer.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1) A site worker slides down a box of 1.50 m x 1.75 m on an inclined concrete ramp with slope 30 degree with a velocity of 4.5 cm/s. The box weighs 55 N and is separated from the concrete ramp by a thin film of oil with a dynamic viscosity of 0.057 N.s/m2.
(i) Illustrate the free body diagram based on the above condition.
(ii) Calculate the space between the box and the ramp, dy.
(iii) At the same condition as above, predict the velocity of the sliding block when the oil is replaced with the SAE 20 oil ( μ= 0.17 N.s/m2) at room temperature, then conclude the answer.
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